ANSWER:

It is her mistake in the first place to accept someone like him in marriage who has little interest in Prayers! It is not permissible to postpone Fajr to maintain his needs as Allah has more rights. She also must advise him to pray on time.  

Kindly refer to the following link(s):

 

A newly married couple where the girl prays all salah but the boy is not into praying salah. When girl wants to get up for fajr prayer and have ghusul husband stops and says to be with him in bed. Should she obey him?!How should she make him understand? Or for some time she listens to him An then shows him the importance. How should she go about?

Fiqh of Marriage, Prayer | February 16, 2018 2:55 pm
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Im living in uae from last 8 years.i travel to my home country pakistan every year for 40 days.i stay there in 3 differnet cities.8 to 9 days in one city 6 to 7 days in second city. rest of the days in third city from where i am landing and take off.my parents’s home is there.i want to ask should i pray qasar salah in evry 3 cities?or should pray full salah? plz reply in brief.
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Can I combine and shorten prayers before going out on a journey or can I only do it while I am on a journey? Please clarify